package com.wanmait.happyheating.mapper;

import com.wanmait.happyheating.pojo.City;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;

import java.util.List;

/**
 * <p>
 * 城市表 Mapper 接口
 * </p>
 *
 * @author yuQianTao
 * @since 2021-05-13
 */
public interface CityMapper extends BaseMapper<City> {
  List<City> findProvinceId(Integer id);//数据访问层根据省份id查询所有相对应的城市
}
